JoomShaper Easy Store Extension 1.0.0-3.0.0 Site Configuration Update configuration.php Session::checkToken fromname/mailfrom cross-site request forgery

Summaryinfo

A vulnerability, which was classified as problematic, has been found in JoomShaper Easy Store Extension 1.0.0-3.0.0. This vulnerability affects the function Session::checkToken of the file configuration.php of the component Site Configuration Update. Performing a manipulation of the argument fromname/mailfrom results in cross-site request forgery. This vulnerability is reported as CVE-2026-90905. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in JoomShaper Easy Store Extension 1.0.0-3.0.0. It has been classified as problematic. This affects the function Session::checkToken of the file configuration.php of the component Site Configuration Update. The manipulation of the argument fromname/mailfrom with an unknown input leads to a cross-site request forgery vulnerability. CWE is classifying the issue as CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. This is going to have an impact on integrity. The summary by CVE is:

Joomla Extension - joomshaper.com - Missing CSRF and Access Control on Site Configuration Update in Easy Store extension 1.0.0-3.0.0 - The endpoint administrator/index.php?option=com_easystore&task=appconfig.updateConfiguration updated core Joomla mail configuration (fromname, mailfrom) in configuration.php without verifying anti-CSRF tokens or checking for administrative permissions (canAdmin). A malicious site could silently modify the site's sender name and email address via forged requests from an admin's browser. Resolved by enforcing Session::checkToken('request') / Session::checkToken('post') and adding explicit administrative authorization verification via AccessControl::create()->canAdmin().

The advisory is shared at joomshaper.com. This vulnerability is uniquely identified as CVE-2026-90905 since 09/14/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

By approaching the search of inurl:configuration.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• JoomShaper

Name

• Easy Store Extension

Version

• 1.0.0-3.0.0

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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